NEW YORK (AP) — Target Corp. will be feeling the financial pain for a while from the theft of credit card numbers and other information from millions of its customers.

The retailer said Wednesday that its fourth-quarter profit slumped 46 percent. It also reported that revenue slipped 5.3 percent as the breach scared off customers.

During the holiday shopping season, personal data from millions of Target customers was stolen by hackers who targeted credit card terminals in its stores. The incident has scared shoppers away, and the company says its profits will be affected well into 2014.

“As we plan for the new fiscal year, we will continue to work tirelessly to win back the confidence of our guests. … We are encouraged that sales trends have improved in recent weeks,” Gregg Steinhafel, chairman, president and CEO of Target, said in a statement.

The data breach comes on top of other woes, including sluggish sales in the U.S. and a disappointing foray into Canada.

The retailer, based in Minneapolis, said it earned $520 million, or 81 cents per share, for the three months that ended Feb. 1. That compares with a profit of $961 million, or $1.47 per share, a year earlier.

Revenue fell to $21.5 billion from $22.7 billion. Revenue at stores open at least a year, an important retail measurement, fell 2.5 percent.

Analysts had expected a profit of 80 cents on revenue of 21.5 billion, according to FactSet estimates.

The breach resulted in $17 million of net expenses in the fourth quarter, Target said, with $61 million of total expenses partially offset by the recognition of a $44 million insurance receivable. The company said it can’t yet estimate how much more the data breach will cost.

Target said expenses may include payments to card networks to cover losses and expenses for reissuing cards, lawsuits, government investigations and enforcement proceedings.

The costs could hurt the company’s first-quarter and full-year earnings, it said.

Shares of Target rose 68 cents to $57.19 in premarket trading Wednesday as the earnings results beat Wall Street estimates by a penny. The stock has fallen about 10 percent since the company disclosed the breach in mid-December.

While the company said that sales have been recovering, the big issue is how much work Target will need to do to bring back customers who are still scared to shop there.

Target disclosed the breach Dec. 19 and then on Jan. 10 it said that hackers also stole personal information — including names, phone numbers as well as email and mailing addresses — from as many as 70 million customers.

When the final tally is in, Target’s breach may eclipse the biggest known data breach at a retailer, one disclosed in 2007 at the parent company of TJMaxx that affected 90 million records.

Target is offering free credit monitoring services for a year to those who had their data compromised.

It isn’t clear when Target will fully recover from the breach, but Avivah Litan, a security analyst at Gartner Inc., puts the costs of the breach at between $400 million and $450 million. That would include the bills associated with fines from credit card companies and services for customers like free credit card report monitoring.

Target’s results are also being weighed down by stumbles in its expansion into Canada, its first foray outside the U.S.

Target is trying to fix problems with pricing and shortages in various items. The company has been opening stores in waves that added up to about 124 stores, at locations once owned by Canadian retailer Zellers, by the end of last year.

The company said it expects earnings per share for the current quarter to range from 60 cents to 75 cents. Analysts had previously expected 88 cents.

For the full year, Target expects earnings per share to range between $3.85 and $4.15. Analysts had expected $4.21.